
public abstract class LiftState {
	 protected Context context;

	    public void setContext(Context context) {
	        this.context = context;
}
	  //电梯开门动作
	    public abstract void open();

	    //电梯关门动作
	    public abstract void close();

	    //电梯运行动作
	    public abstract void run();

	    //电梯停止动作
	    public abstract void stop();
}

